245430454 has 4 divisors (see below), whose sum is σ = 368145684. Its totient is φ = 122715226.

The previous prime is 245430443. The next prime is 245430473. The reversal of 245430454 is 454034542.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×245430454² = 120472215501292232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61357612 + ... + 61357615.

It is an arithmetic number, because the mean of its divisors is an integer number (92036421).

Almost surely, 2^245430454 is an apocalyptic number.

245430454 is a deficient number, since it is larger than the sum of its proper divisors (122715230).

245430454 is a wasteful number, since it uses less digits than its factorization.

245430454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122715229.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 245430454 is about 15666.2201567577. The cubic root of 245430454 is about 626.0987214461.

Adding to 245430454 its reverse (454034542), we get a palindrome (699464996).

The spelling of 245430454 in words is "two hundred forty-five million, four hundred thirty thousand, four hundred fifty-four".